Book cover



FIG. 1 is a front view of the book cover, showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side view being a mirror image thereof;

FIG. 3 is a rear or inside view thereof;

FIG. 4 is a top plan view thereof, the bottom view being a mirror image thereof; and,

FIG. 5 is a perspective view of the book cover. 

The ornamental design for a book cover, as shown and described. 